From: David Wang <davidwang@zhaoxin.com> To: <bp@alien8.de>, <tony.luck@intel.com>, <tglx@linutronix.de>, <mingo@redhat.com>, <hpa@zytor.com>, <gregkh@linuxfoundation.org>, <x86@kernel.org>, <linux-kernel@vger.kernel.org>, <linux-edac@vger.kernel.org> Cc: <brucechang@via-alliance.com>, <cooperyan@zhaoxin.com>, <qiyuanwang@zhaoxin.com>, <benjaminpan@viatech.com>, <lukelin@viacpu.com>, <timguo@zhaoxin.com>, David Wang <davidwang@zhaoxin.com> Subject: [PATCH v3 1/2] x86/mce: new Centaur CPU support MCE broadcasting Date: Wed, 25 Apr 2018 18:33:39 +0800 [thread overview] Message-ID: <1524652420-17330-2-git-send-email-davidwang@zhaoxin.com> (raw) In-Reply-To: <1524652420-17330-1-git-send-email-davidwang@zhaoxin.com> Newer Centaur multi-core CPU also support MCE broadcasting to all cores. But no Centaur special code tell this truth to kernel. Signed-off-by: David Wang <davidwang@zhaoxin.com> --- arch/x86/kernel/cpu/mcheck/mce.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 42cf288..38ccab8 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -1727,6 +1727,22 @@ static void __mcheck_cpu_init_early(struct cpuinfo_x86 *c) } } +void mce_centaur_feature_init(struct cpuinfo_x86 *c) +{ + struct mca_config *cfg = &mca_cfg; + + /* + * All newer Centaur CPUs support MCE broadcasting. Enable + * synchronization with a one second timeout. + */ + if (cfg->monarch_timeout < 0) { + if ((c->x86 == 6 && c->x86_model == 0xf && + c->x86_stepping >= 0xe) || c->x86 > 6) + cfg->monarch_timeout = USEC_PER_SEC; + } +} + + static void __mcheck_cpu_init_vendor(struct cpuinfo_x86 *c) { switch (c->x86_vendor) { @@ -1739,6 +1755,9 @@ static void __mcheck_cpu_init_vendor(struct cpuinfo_x86 *c) mce_amd_feature_init(c); break; } + case X86_VENDOR_CENTAUR: + mce_centaur_feature_init(c); + break; default: break; -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: davidwang <davidwang@zhaoxin.com> To: bp@alien8.de, tony.luck@intel.com, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, gregkh@linuxfoundation.org, x86@kernel.org, linux-kernel@vger.kernel.org, linux-edac@vger.kernel.org Cc: brucechang@via-alliance.com, cooperyan@zhaoxin.com, qiyuanwang@zhaoxin.com, benjaminpan@viatech.com, lukelin@viacpu.com, timguo@zhaoxin.com, David Wang <davidwang@zhaoxin.com> Subject: [v3,1/2] x86/mce: new Centaur CPU support MCE broadcasting Date: Wed, 25 Apr 2018 18:33:39 +0800 [thread overview] Message-ID: <1524652420-17330-2-git-send-email-davidwang@zhaoxin.com> (raw) Newer Centaur multi-core CPU also support MCE broadcasting to all cores. But no Centaur special code tell this truth to kernel. Signed-off-by: David Wang <davidwang@zhaoxin.com> --- arch/x86/kernel/cpu/mcheck/mce.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 42cf288..38ccab8 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -1727,6 +1727,22 @@ static void __mcheck_cpu_init_early(struct cpuinfo_x86 *c) } } +void mce_centaur_feature_init(struct cpuinfo_x86 *c) +{ + struct mca_config *cfg = &mca_cfg; + + /* + * All newer Centaur CPUs support MCE broadcasting. Enable + * synchronization with a one second timeout. + */ + if (cfg->monarch_timeout < 0) { + if ((c->x86 == 6 && c->x86_model == 0xf && + c->x86_stepping >= 0xe) || c->x86 > 6) + cfg->monarch_timeout = USEC_PER_SEC; + } +} + + static void __mcheck_cpu_init_vendor(struct cpuinfo_x86 *c) { switch (c->x86_vendor) { @@ -1739,6 +1755,9 @@ static void __mcheck_cpu_init_vendor(struct cpuinfo_x86 *c) mce_amd_feature_init(c); break; } + case X86_VENDOR_CENTAUR: + mce_centaur_feature_init(c); + break; default: break;
next prev parent reply other threads:[~2018-04-25 10:33 UTC|newest] Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-04-25 10:33 [PATCH v3 0/2] MCA support for Centaur CPUs David Wang 2018-04-25 10:33 ` David Wang [this message] 2018-04-25 10:33 ` [v3,1/2] x86/mce: new Centaur CPU support MCE broadcasting davidwang 2018-04-30 9:41 ` [PATCH v3 1/2] " Borislav Petkov 2018-04-30 9:41 ` [v3,1/2] " Borislav Petkov 2018-05-06 10:51 ` [tip:ras/core] x86/MCE: Enable MCE broadcasting on new Centaur CPUs tip-bot for David Wang 2018-05-06 10:51 ` tip-bot for Borislav Petkov 2018-04-25 10:33 ` [PATCH v3 2/2] x86/mce: add CMCI support for " David Wang 2018-04-25 10:33 ` [v3,2/2] " davidwang 2018-04-30 9:48 ` [PATCH v3 2/2] " Borislav Petkov 2018-04-30 9:48 ` [v3,2/2] " Borislav Petkov
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